# ORBIX

> AI inference market on Robinhood Chain. One API key for Claude, GPT, Gemini, DeepSeek, Qwen and more. Requests are billed at provider list price minus a discount funded by $ORBIX trading fees.

## Integrate
- OpenAI-compatible base URL: https://api.useorbix.app/v1
- Anthropic-compatible base URL: https://api.useorbix.app
- Auth: "Authorization: Bearer $ORBIX_API_KEY" (Anthropic surface also accepts "x-api-key")
- Read the key from the ORBIX_API_KEY environment variable. Never hard-code it.

## Endpoints
- POST /v1/chat/completions  (OpenAI Chat Completions, supports stream: true)
- POST /v1/messages          (Anthropic Messages, supports stream: true)
- GET  /v1/models            (model list with pricing)

## Model ids
Format is provider/model. Any model works on either endpoint.
- anthropic/claude-fable-5.1 (Claude Fable 5.1, 1,000,000 ctx, $10/$50 per 1M in/out)
- anthropic/claude-opus-5.5 (Claude Opus 5.5, 1,000,000 ctx, $4/$20 per 1M in/out)
- anthropic/claude-sonnet-5.5 (Claude Sonnet 5.5, 1,000,000 ctx, $2/$10 per 1M in/out)
- anthropic/claude-haiku-5.5 (Claude Haiku 5.5, 1,000,000 ctx, $0.1/$0.5 per 1M in/out)
- openai/gpt-6-astra (GPT-6 Astra, 1,050,000 ctx, $10/$50 per 1M in/out)
- openai/gpt-6.1-sol (GPT-6.1 Sol, 1,050,000 ctx, $2/$10 per 1M in/out)
- openai/gpt-6-luna (GPT-6 Luna, 1,050,000 ctx, $0.1/$0.5 per 1M in/out)
- google/gemini-4-argon (Gemini 4 Argon, 1,048,576 ctx, $2/$10 per 1M in/out)
- google/gemini-3.8-flash (Gemini 3.8 Flash, 1,048,576 ctx, $0.825/$4.125 per 1M in/out)
- deepseek/deepseek-v4-pro-0813 (DeepSeek V4 Pro, 1,048,576 ctx, $0.66/$1.98 per 1M in/out)
- deepseek/deepseek-v4.1-flash (DeepSeek V4.1 Flash, 1,048,576 ctx, $0.024/$0.375 per 1M in/out)
- qwen/qwen3.8-max-0902 (Qwen3.8 Max, 1,000,000 ctx, $2/$6 per 1M in/out)
- qwen/qwen3.8-flash (Qwen3.8 Flash, 1,000,000 ctx, $0.15/$0.47 per 1M in/out)
- x-ai/grok-4.7 (Grok 4.7, 500,000 ctx, $2/$6 per 1M in/out)
- moonshotai/kimi-k3 (Kimi K3, 1,048,576 ctx, $0.239/$11.936 per 1M in/out)
- z-ai/glm-5.3 (GLM 5.3, 1,048,576 ctx, $0.079/$1.4 per 1M in/out)
- mistralai/mistral-large-4-0 (Mistral Large 4, 1,048,576 ctx, $1.36/$4.18 per 1M in/out)

## Billing
Response headers: x-orbix-list-cost, x-orbix-discount, x-orbix-charged, x-orbix-pool-factor, x-orbix-upstream.
discount = tier cap x pool factor. Pool resets daily at 00:00 UTC.

## Holder tiers
- Visitor: no $ORBIX, discount cap 0%
- Ascent: >= 0.05% of $ORBIX supply, discount cap 10%
- Orbit: >= 0.1% of $ORBIX supply, discount cap 30%
- Core: >= 0.5% of $ORBIX supply, discount cap 60%
- Singularity: >= 1% of $ORBIX supply, discount cap 80%

## Errors
400 invalid_request, 401 invalid_api_key, 402 insufficient_balance, 404 model_not_found, 429 rate_limited (honour retry-after), 502 upstream_error, 503 overloaded.
Retry 429/502/503 with exponential backoff.

## Docs
- https://useorbix.app/docs
- https://useorbix.app/docs/getting-started/quickstart
- https://useorbix.app/docs/api-reference/overview